Struct L2Sender

Source

pub struct L2Sender { /* private fields */ }

Expand description

Sender for raw L2 Ethernet frames via AF_PACKET socket.

Implementations§

Source §

impl L2Sender

Source

pub fn new(ifname: &str) -> Result<Self, IoError>

Open an AF_PACKET socket for sending on the given interface.

Examples found in repository ?

examples/cross_platform_send.rs (line 49)

20fn main() -> Result<(), Box<dyn std::error::Error>> {
21    let ifname = std::env::args().nth(1).unwrap_or_else(|| "eth0".into());
22    println!("Sending on {} ...", ifname);
23
24    // Build ICMP Echo Request
25    let icmp = IcmpPacketBuilder::echo_request()
26        .identifier(0x0001)
27        .sequence_number(1)
28        .payload(b"wireforge!")
29        .build();
30
31    // Build IPv4 packet
32    let ipv4 = Ipv4PacketBuilder::new()
33        .source(Ipv4Addr::new(192, 168, 1, 100))
34        .destination(Ipv4Addr::new(192, 168, 1, 1))
35        .protocol(IpProtocol::Icmp)
36        .ttl(64)
37        .payload(&icmp)
38        .unwrap()
39        .build();
40
41    // Build Ethernet frame (broadcast)
42    let frame = EthernetPacketBuilder::new()
43        .dst_mac([0xFF; 6])
44        .src_mac([0x00, 0x11, 0x22, 0x33, 0x44, 0x55])
45        .ethertype(EtherType::Ipv4)
46        .payload(&ipv4)
47        .build();
48
49    let tx = DefaultL2Writer::new(&ifname)?;
50    let n = tx.send(&frame)?;
51    println!("Sent {} bytes", n);
52    Ok(())
53}

Source

pub fn send(&self, packet: &[u8]) -> Result<usize, IoError>

Send raw L2 bytes on the interface.

Examples found in repository ?

examples/cross_platform_send.rs (line 50)

20fn main() -> Result<(), Box<dyn std::error::Error>> {
21    let ifname = std::env::args().nth(1).unwrap_or_else(|| "eth0".into());
22    println!("Sending on {} ...", ifname);
23
24    // Build ICMP Echo Request
25    let icmp = IcmpPacketBuilder::echo_request()
26        .identifier(0x0001)
27        .sequence_number(1)
28        .payload(b"wireforge!")
29        .build();
30
31    // Build IPv4 packet
32    let ipv4 = Ipv4PacketBuilder::new()
33        .source(Ipv4Addr::new(192, 168, 1, 100))
34        .destination(Ipv4Addr::new(192, 168, 1, 1))
35        .protocol(IpProtocol::Icmp)
36        .ttl(64)
37        .payload(&icmp)
38        .unwrap()
39        .build();
40
41    // Build Ethernet frame (broadcast)
42    let frame = EthernetPacketBuilder::new()
43        .dst_mac([0xFF; 6])
44        .src_mac([0x00, 0x11, 0x22, 0x33, 0x44, 0x55])
45        .ethertype(EtherType::Ipv4)
46        .payload(&ipv4)
47        .build();
48
49    let tx = DefaultL2Writer::new(&ifname)?;
50    let n = tx.send(&frame)?;
51    println!("Sent {} bytes", n);
52    Ok(())
53}